<?php

// +----------------------------------------------------------------------
// | H1CMS © OpenSource CMS
// +----------------------------------------------------------------------
// | Copyright (c) 2014-2016 http://www.h1cms.com All rights reserved.
// | Copyright (c) 2014-2016 嘉兴领格信息技术有限公司，并保留所有权利。
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: Allen <allen@lg4.cn>
// +----------------------------------------------------------------------

namespace Lg\Support;

/**
 * Description of Singleton
 *
 * @author Allen <allen@lg4.cn>
 */
class Singleton {

    protected static $instance = null;

    protected function __construct() {
        
    }

    protected function __clone() {
        
    }

    public static function getInstance() {
        if (!isset(static::$instance)) {
            static::$instance = new static;
        }
        return static::$instance;
    }

    public static function instance() {
        return static::getInstance();
    }

}
